- Added `ticket_generation_policy` column to `catalog_items` table to manage ticket generation strategies.
- Created `ticket_validity_times` table to allow multiple validity times per ticket.
- Introduced `validity_time_id` column in `event_dates` table to associate event dates with validity times.
- Established `ticket_validity_groups` and `ticket_validity_group_times` tables to group validity times for tickets.
- Updated seeder to set default ticket generation policy for specific tenant.
- Enhanced tests to cover new functionality, including ticket generation based on event dates and validity times.
- Refactored ticket validity checks to accommodate multiple validity times in a group.
- Added ValidityTime model and migration to manage ticket validity periods.
- Updated TicketGeneratorService to resolve and assign validity times to tickets.
- Refactored ticket generation logic to remove legacy date fields and use validity time.
- Introduced timezone support for tenants to handle service dates correctly.
- Updated migrations to remove deprecated columns and add foreign keys for validity times.
- Modified seeders and tests to accommodate new validity time structure.
- Enhanced tests to validate ticket generation and validity time behavior.
